I try to avoid brute force solutions, but...
Today's Cody Tip of the Day: Make sure you paste your solution into the text box BEFORE you hit submit.
Make a checkerboard matrix
Project Euler: Problem 3, Largest prime factor
Getting logical indexes
Converting numbers back from extended form
Fibonacci-Sum of Squares
Piecewise linear interpolation
S-T-R-E-T-C-H I-T O-U-T
Circular Primes (based on Project Euler, problem 35)
It's Happy! It's Fun! It's Happy Fun Hyperball!
Kurchan 5x5 - Optimal Score
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